Add translation key for time ago and related strings

[cyril59310]

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Description

Add translation keys

Fixes #(issue)

Type of change

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• Other

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[CommanderStorm]

Please add a translation instead of just removing it, or am I missing something? ^^

[cyril59310]

Because I wanted to do it like the beginning of the bar and add the key "ago." However, I realized that by doing this, both the "now" key was also displayed

[cyril59310]

So I deleted it to leave only the 'now' or '1m' at the end without displaying the 'ago'

[chakflying]

• FYI you can rebase the branch on master to remove the unrelated commits.
• The main reason the heartbeat time indication was not translated, is because "the minimum width of heartbeats where the time indication should be displayed" is a fixed value. If the text can be translated, this width becomes variable. I don't see an easy way of handling this.

[chakflying]

Although I suppose we could just increase the value to be much larger than necessary to be safe.